<script> 
    // 进入到index.html 马上进行判断。
   if(localStorage.getItem('token') === null) {
       //跳转到登录页面
       location.href = './login.html';
 
   }
 
 
 </script>
 
 <!DOCTYPE html>
 
 <html>
 
 <head>
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
     <title>layout 后台大布局 - Layui</title>
     <link rel="stylesheet" href="./assets/lib/layui/css/layui.css">
     <link rel="stylesheet" href="./assets/css/index.css">
 </head>
 
 <body class="layui-layout-body">
     <div class="layui-layout layui-layout-admin">
         <div class="layui-header">
             <div class="layui-logo">
                 <img src="./assets/images/logo.png" alt="">
             </div>
             <!-- 头部区域（可配合layui已有的水平导航） -->
             <ul class="layui-nav layui-layout-right">
                 <li class="layui-nav-item">
                     <a href="javascript:;">
                         <span class="user-avatar">L</span>
                         <img src="http://t.cn/RCzsdCq" class="layui-nav-img">
                         个人中心
                     </a>
                     <dl class="layui-nav-child">
                         <dd><a href="./user/userinfo.html" target="fm">基本资料</a></dd>
                         <dd><a href="./user/avatar.html" target="fm">更换头像</a></dd>
                         <dd><a href="./user/repwd.html" target="fm">重置密码</a></dd>
                     </dl>
                 </li>
                
                 <li id="logout" class="layui-nav-item"><a href="javascript:;" class="exit"> <i class="layui-icon layui-icon-logout"></i>退出</a></li>
             </ul>
         </div>
 
         <div class="layui-side layui-bg-black">
             <div class="layui-side-scroll">
                 <div href="javascript:;" class="userinfo">
                     <span class="user-avatar">L</span>
                     <img src="http://t.cn/RCzsdCq" class="layui-nav-img">
                     欢迎您 <span class="username">铁文</span>
                 </div>
                 <!-- 左侧导航区域（可配合layui已有的垂直导航） -->
                 <ul class="layui-nav layui-nav-tree" lay-filter="test" lay-shrink="all">
                     
                     <li class="layui-nav-item layui-this"><a href=""><i class="layui-icon layui-icon-home"></i>首页</a></li>
                     <li class="layui-nav-item">
                         
                         <a class="" href="javascript:;"><i class="layui-icon layui-icon-read"></i>所有商品</a>
                         <dl class="layui-nav-child">
                             <dd><a href="./article/category.html" target="fm"><i class="layui-icon layui-icon-app"></i>文章类别</a></dd>
                             <dd><a href="./article/article.html" target="fm"><i class="layui-icon layui-icon-app"></i>文章列表</a></dd>
                             <dd><a href="./article/add.html" target="fm"><i class="layui-icon layui-icon-app"></i>发表文章</a></dd>
                         </dl>
                     </li>
                     <li class="layui-nav-item">
                         
                         <a href="javascript:;"><i class="layui-icon layui-icon-username"></i>个人中心</a>
                         <dl class="layui-nav-child">
                             <dd><a href="./user/userinfo.html" target = "fm" ><i class="layui-icon layui-icon-app"></i>基本资料</a></dd>
                             <dd><a href="./user/avatar.html" target = "fm"><i class="layui-icon layui-icon-app"></i>更换头像</a></dd>
                             <dd><a href="./user/repwd.html" target = "fm"><i class="layui-icon layui-icon-app"></i>重置密码</a></dd>
                         </dl>
                     </li>
 
                 </ul>
             </div>
         </div>
 
         <div class="layui-body">
             <!-- 内容主体区域 -->
             <!-- <div style="padding: 15px;">内容主体区域</div> -->
             <iframe src="./home/dashboard.html" frameborder="0" name="fm"></iframe>
         </div>
 
         <div class="layui-footer">
             <!-- 底部固定区域 -->
             © layui.com - 底部固定区域
         </div>
     </div>
     <script src="./assets/lib/layui/layui.all.js"></script>
     <script src="./assets/lib/jquery.js"></script>
     <script src="./assets/js/common.js"></script>
     <script src="./assets/js/index.js"></script>
 
 
 </body>
 
 </html>